| Name: | gonad |
|---|---|
| Synonyms: | gonads, mature gonad |
| Definition: | The part of the reproductive system that produces and releases eggs (ovary) or sperm (testis). |
| Ontology: | Anatomy Ontology [ZFA:0000413] |
| Name: | sperm |
|---|---|
| Synonyms: | sperm cell, spermatozoid, spermatozoon |
| Definition: | A mature male germ cell that develops from a spermatid. |
| Ontology: | Anatomy Ontology [ZFA:0009006] |
| Name: | absent |
|---|---|
| Synonyms: | absence, absent from organism |
| Definition: | A quality denoting the lack of an entity. |
| Ontology: | Phenotypic Quality Ontology [PATO:0000462] |